is 2 382463 - 1
has 115133 decimal digits
takes 0.004 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L9A26D16E48037961double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26777.691071.6418 %100000040996300803.153010.1041 %80.844074.5071 %
Target2440.000056.8182 %700010000000.000912.7704 %0.000962.3327 %
Difference+23+77.6910+14.8236 %+993000+4098630080+3.1522-2.6664 %+80.8431+12.1744 %

Known prime factors (1 factor, 76.5 bits, 0.01999684% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3824631054227441667219355390232476.481137820840403806297
32 × 15313426711534033
2010-03-2991531342671153403340,01411,727,95821,904,560

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-11-10ANONYMOUSv4_computers500001000000--0.00118.952%
2002-06-15ANONYMOUSv4_computers32768327680012--0.00321.575%
2002-08-24ANONYMOUSv4_computers65536655360012--0.00624.211%
2024-02-18Denial140i5-840010000004099630080--3.15343.457%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-01ANONYMOUSv4_computers2522530.002
2000-04-27ANONYMOUSv4_computers212540.006
2022-03-07LordJuliusManual testing254255
2001-03-17ANONYMOUSv4_computers212560.025
2002-01-28ANONYMOUSv4_computers212570.050
2004-01-18ANONYMOUSv4_computers212580.100
2009-01-05Sturle Sundefungo.ifi2582590.100
2009-01-09Sturle Sundeghini.ifi2592600.201


ECM factoring results:
Total ECM effort:10.399 GHz-days
Estimated T-Level:26.433
DigitsB1CompleteFacMiss
201100023.8220.000%
25500003.0214.875%
302500000.28775.083%
3510000000.02297.834%
4030000000.00199.860%


ECM Summary

B1B2factorcurvesGHz-days
10.018
5000050000002792.814
250000250000001447.567


Lucas-Lehmer results:
No L-L results for M382463


PRP results:
dateuseridcompidcofactorsres64
2017-09-23Oliver KruseOllaptop
105422744166721935539023
2FDC614A7E58EEC0
2017-11-02kkmrkkblmbrbkc4.xlarge
105422744166721935539023
2FDC614A7E58EEC0
2020-04-18Oliver KruseAddPrpType5
105422744166721935539023
727B64FDFED036DB


CERT results:
No CERT results for M382463


P-1 factor-bounds graph:
B1 = 1000000, B2 = 4099630080 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 50000, B2 = 1000000 (P-1 stage 2)
B1 = 65536 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=26.43 ~= 71-bit
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Last modified: 2024-02-29T14:28:04+00:00